Paper-sheet-feed mechanism.



F. GIROUD. PAPER SHEET FEED MECHANISM.

APPLICATION FILED 1310.4, 1908.

"Patented Jan. 11, 1910.

"9FIGN3.

' INVENTOR UNITED STATES PATENT onion- FELIPE GIROUD, OF NEW YORK, N. Y.

PAPER-SHEET-FEED MECHANISM.

' To all whom it may concern:

Be it known that I, Fumes Gmoun, a citizen of Cuba, and resident of the city of New York, in the county of New York and State of New York, have'invented a certain new and useful Paper Sheet Feed, Mechanism, of which the following is a specification.

This invention relates to mechanism for feeding paper from a stack of flat sheets. Such use of paper is an advantage in some cases, as for example, when it is desired to wrap an article with a label which must be printed in flat sheet form, or when feeding fiat sheets to folding or other machines.

The invention consists of means for separating one sheet from the staclgand means for feeding this separated sheet to carriers which deliver it tooperating partsof the machine using said paper.

for' automatically adjusting the position of the stack to compensate for removal of paper by said feeding mechanism.

In the accompanying drawings Figure 1 is a sectional elevation on the line I-I of Fig. 2, showing thepaper feed mechanism adapted for use on a wrapping machine. Fig. 2 is a plan view. Fig. 3 is a cross sec- -tion on the lineIII-III of Fig. 1.- Fig. 4 -is a detail elevation showing the operation of the sheet separating device. Fig. 5 is a sectional plan on the line V-V of Fig. 4. Fig. t.- is a detail view of part of a device for adjusting the position of the stack'of paper.

The machine 1 is composed of, side p bar 4.

lprovided. with a frame ates 2, 3, and a cross Continuously driven from machine 1, is

..uppei" end in a bracket 6 on side plate 2.

To the upper end of vertical shaft Finis secured a bevel gear wheel 7, in mesh with a bevel gear wheel '8 on a shaft 9 which extends across 'and rotates in bearings formed on side plates 2 and 3. To one end of'shaft 9 is secured a gear wheel 10 in mesh with a gearwheel 11 on a shaft- 12 which also ektends across and rotatesin bearings'formed on sideplates 2 and 3. Midway between side plates 2 and 3 are wheels 13 and 14 which are secured to the corresponding shafts 9 and 12. The wheels 13 and '14 are each provided with a rubber tire 15, the

Specification of Letters Patent.

Application filed December The invention further consists of means Patented Jan. 1.1, 1910. 4, 1902. Serial No. 465,960.

tires of the two wheels bearing against each other, during their continual rotation.

Secured eccentrically to gear wheel 10 is a crank pin 16 which is connected by a rod 17 to a slide 18. By means of the crank pin 16 and rod 17, slide 18 has reciprocating movement in guides 19 formed on side plate 3. Forming part of slide 18 is an arm 20 which extends through a slot 21 formed in side plate 3, and has a swinging frame 22 pivoted upon it. Rotating in bearings 23 at one end of swinging frame 22 is a rubber roller 24 which provided. with a ratchet wheel 25 in engagement with a spring pawl 26 preventing rotation of roller 24 except in one direction. Roller 24 rests upon the stack of paper 27, and when slide 18 arm 20, and swinging frame 22, move forward toward the wheels 13 and 14, rotation of roller 24 is prevented by engagement of spring pawl 26 ,with ratchet wheel .25. Friction of rubber roller 24 upon the top sheet of paper will top sheet, until its forward end passes between the rubber tires of wheels 13 and 14. As the wheels are constantly rotating the sheetof paper will be carried by the wheels into the chute 28 which conveys it to a osition to be acted upon by moving parts 0 machine 1. The moving parts of the machine shown in the drawings consist of an article forces the article against the sheet'of paper '27, causing the paper to be forced against the plates 31 which fold the paper upon the article. It will be understood that the machine receiving the sheet of paper which is machine adapted for using such paper. When return movement of arm '20 and swinging frame 22 carries rubber roller 24 away fromwheels 13 and 14, the roller 24 tion and causing no disarra'ngement of the paper while the roller travels rearwardly upon it. V

The stack of paper is held in place on the two sides by means of the side plates 2 and i 3, and at the forward endby a plate 32 attherefore cause forward movement of the 29 to be wrapped, and a plunger 30 which will be free to rotate, thereby reducing fric-' delivered by wheels 13 and 14, could be any tached' to the side plate 2. The reciprocat- '1 ing movement of roller 24 is confined to a small part of the stack of pape' extending from near the middle toward tl e forward I end. When forward movement 0'. roller 24,

rod 3% has horizontal rotary and vertically and;

moves the top sheet of paper forward, the l friction of the lop sheet throughout its under surface upon the next sheethelow it is liable to carry the second sheet forward also. in order to prevent this, the pointed end of a knife blade 33 caused to pierce the upper sheets of paper, near the rear end of the stack. The knife is adjusted to have a cut ting edge directed toward the rear end of the sop sheet of paper so that when roller 2% moves forward and, acting upon the forward and of the top sheet, moves it forward, he rear end of the topshcet will be cut by means f the knife. T he friction of the top sheet of paper upon the second sheet is not enough to cause the second sheet to he forced against the cutting edge of the knife with suilicient force to cut the paper, consequently the second sheetwill be held stationary by means of the knife, while the first sheet will be separated from the stack. This is due to the fact that sufficient friction or force can be applied to move the top sheet with little 1 risk of moving'the sheet below it. It will be evident that this affords a means for separating the top sheet from the stack; consisting of insertion of a knife from the top thereby supplying a means for holding the sheets below the top one stationary, while friction or force can be applied to the top sheet againstthe knife sutlicientto out the top sheet loose. As the sheets are successively cut by the knife, an accumulation of small particles of aper gather against the knife which woulc. finally prevent the cutting action. For this reason means is provided whereby such particles are automatically removed from the knife. To accomplish the automatic cleaning the knife 33 is provided with two cutting edges and is rigidly secured to a vertical rod 34:. Vertical sliding movement in a guide 35 formed on an arm 36 attached to a cross bar 4. A spring 37 placed between the arm 36 and a shoulder 38 on rod 34 forces the point of the knife downward through the top sheets of paper until a square collar 39 secured to the upper end of the rod, comes to rest on the arm 36.

Secured to arm 36 is a flat spring ll) the a free end of which presses againstthe square collar 39, thereby holding the knife in position. To the lower end of vertical rod 3% is secured two arms s1 which extend radially from opposite sides of the rod. Above the i arm all are two similar arms 42 which extend l radially at right angles to the arms 41. v

Secured to the arm 20 on slide 18, are two fingers 4-3 and 44 adapted to engage the corl responding lower and upper radial arms el and on vertical rod 34. The knife 33, radial'arms ll and the square collar 39, are so placed on vertical rod 34 that when l the fingers 43 and 44 on arm 20 occupy the l cease? forward position shownin Figs. 1' and '2, the knife 33 will stand crosswise of the line of travel of roller 24-. lln this position the finger 43. by engagement with one of the radial arms all, has moved the vertical rod 34: aquarter turn, and caused the flat spring to'engage a face onthe square collar 39 which holds the knife crosswise This. quarter turn of vertical rod 3% has caused one of the upper radial arms 42 to move into range with the upper linger Then as the fingers are moved to the rcar 'the finger 1-1. by engagement with radial arm 42, will give vertical rod as a quarter urn causing the fiat spring 40., to engage a face on the square collar 39, which will cause knife to stand ona line with the travel of roller 24:. The parts will then occupy the posi-- tion shownin Fig. 5; a radial arm ii is then in range with the finger e3, wh'ch latter stands removed toward the rear, in order that forward movement of roller 2% shall draw the top sheet of paper against the knife before the finger 43 engages the radial arm e1.

n will be an that remain of the knife causes the knife edge-which has cut one sheet or" paper tohe turned'forward after the cutting and-that fdrward movement of the next sheet of paper',will'-reinove particles of paperfrom the knife edge. which cuts the first sheet,'and so on an knife edge which has cut one sheet being cleaned by means of the sheet coining after. Rotation of the knife also keepsthe point clean, thereby preventing accumulation of paper par. ticles which would. interfere with penetration of the, paper by the knife point.

As a further safeguard against feeding two. sheets of paper at once, a cross bar 45 extends across below the path oft-he, paper as it is moved toward the wheels '13 and'l l.

Secured to the center of this bar is arrubher friction surface 46 which projects above the bar and toward the wheels 13 and 14: 111

case two sheets are moved forwardby roller 245 the forward end of thc'sheet below the top one will take against the rubberfiition surface 46 which actingagainst the center of the forward end, retards the second sheet without causing much friction of the second sheet against the under side of the first or top sheet.

5 action, of rubber friction surface +16 against a small part ofa sheet below the top sheet lhercby increasing-the tendency of the upae below the top sheet to renfxain stationary. afford two means of preventing the feed of more than one sheet at a time. g

The stack of paper is placed upon a plat-1 form 47 which has vertical The action of knife 33 in iercing the upper sheets'of paper whereby movenren t cease? against guides 48, and 32 forming part of 'the side plate 2. The platform 47 is sup- .has been exhausted. Secured to the upper end of screw 51 is a ratchet wheel. 53, the hub of which, resting on the bearing 54;, serves to support the screw 51 and parts carried byit. Pivotedupon screw 51 is a lever 55 carrying a pawl 56 which is held in engagement with ratchet wheel 53 by means of a spring 57. The lever extends acrossabove the center of the paper and is held against a fixed stop 58 by means of a spring 59.' The free end of lever 55 is provided.

i with a downwardly projecting pin 60 havin; a head or flange 61 at its lower end supporting a-roller 62 as shown in Fig. 6, the roller being capable of vertical movement and rotation on the pin 60. The swinging frame 22 is provided with a projection 63 on the end opposite the one carrying roller 24. and when the swinging frame moves rearwardly, the outer end of the projection 63 engages the roller 62 and moves the level--55 away from stop 58. The

- pawl 56 on lever 55 engaging the ratchet wheel 53, causes rotation of the screw 51 and consequent upward movement of the stack of paper.- Continued back and forth movement of lever and consequent rotation of screw 51 will cause upward movement of the end of swinging frame 22 carrying the roller 24, causing the projection 63 at the oppositev end to be lowered until it no longer engages the roller 62 on lever Movement of screw 51 will then cease, and the stack of paper will remain stationary until removal of paper by the feeding mechanism causes the projection 63 on the swinging frame 22 to again engage the roller 62 on lever and cause rotation of the screw 51. The lower end of roller 62 is provided with an ofi'set, forming a shoulder against which the projection 63 bears in order that upward movement of projection 63 and consequentdownward movement of roller 24 shall be prevented while actuating the lever 55. Roller 62 is free to rotate while itsides against the projwtion 63. and upward movement of roller 62 will be permitted to accommodate play of projection 63 during the operation of engagement I pawl out of engagement with ratchet wheel 53. The screw is then free to'he rotated by the hand crank 52, in a direction causing the platformd? to be lowered, and leaving space for insertion of paper against the end plate 32 and guides 48 on side plate 2. By

meansof screws 67 passin through slots 68 in slide Stand into 'si e plate 2, the. slide is held in such position that case a supply of paper is exhaust-ed' when the operator is away, continued upward movement of platform 47 will be preventedhy means of a projection 69- on the arm "49..

The projection 69 will lift the slide seine;

cause the inclined surface 65 to throw the pawl outv of action and prevent further rotation of screw 51.

I claim as my invention:

1. A paper sheet feed mechanism ing a support for a stack of sheets of paper, a pointed knife, means whereby the point: of said knife is forced into the paper ata. right. angle to the plane of the paper, means for causing rotary movement of said knife in a plane parallel with the plane of the paper, means for holding a cutting edge of said knife toward the rear end of the stack, and means for moving one of said sheets of paper forward against the knife whereby said sheet is cut loose, the point of said knife holding the remaining sheets station'- ary.

2. A paper-sheet feed mechanism. comprising'a support for a stack of sheets of pa er. a reciprocating carriage, a vertically yieil ing and horizontally rotating rod, said rod. carrying a two edge knife having a. point which pierces the paper at a right angle to the plane of the paper, said rod having armsada ted to cause rotary movement of the knife in a plane parallel with the plane of the paper, said reciprocating carriage having means for actuating said arms whereby every back and forth movement of-the carriage causes a half revolution of said knife, means for holding a cutting edge of saidknife in line with the line of travel of said.

compriscarriage, and said carriage having/a device for moving one of said sheets against the knife during forward movement,'wh'ereby said sheet is cut loose.

3. A paper-sheet feed mechanism comprising a support for a stack of sheets. of paper,

a knife having point which pierces the paper at a rightangle to the plane of the paper means for causing rotar movement of said knife in a plane paral el with the of said paper for and means whereby ack forth movement of said carc causes half revolution of said knife. ii. 'oaper'sheet feed mechanism compris- F r a stack of sheets of paper, piercing the upper sheets e stack, arms for s id knife, a reciprocating carfor actuating it, said carmeans for engaging one of said return i. cment, whereby a is ting ed e is turned into alinement with the line or travel of said carriage, the carriage also having a device for moving the top sheet of paper during forward movement, whereby the top is cut loose by said knife;

(3. It paper-sheet feed mechanism comprising a reciprocating carriage and means for actuating it, a support for a stack of sheets of paper, a rotatable two edge knife piercing the upper sheets near the rear end of the stack, means for holding the knife in alinement arms for actuating said knife, said carriage having a device for moving the top sheet of paper during forward movement; and means for engaging said arms, whereby the cutting edges are reversed, thereby turning a new cutting edge toward the rear end of the stack, whereby forward movement of the top sheet by means of the carriage causes the top sheet to be cut loose by the new knife edge, and the previous cutting edge is freed from particles caused by previous cutting.

T. A paper-sheet feed mechanism comprising a reciprocating carriage and means for actuating it, a support for a stack of sheets of paper, a rotatable two edge knife piercing the upper sheets near the rear end of the stack, means for holding a cutting edge of said knife toward the rear end of the stack, arms for actuating said knife, said carriage having a device for moving the top sheet forward against the knife thereby cutting v the top sheet loose, said carriage having means for engaging said arms during forward movement whereby the knife is given a quz turn, said carriage also having means engaging said arms during return movement, whereby the knife is given another quarter turn, thereby causing a new utting edge to be pointed toward the rear end of the stack.

S, It paper-sheet feed mechanism comprising a support for a stack of sheets of paper,

a device for automatically adjusting said support to compensate for removal of paper 1, ti o ding mechanism. a reciprocating g a p voted frame. said pivoted evicc at one and resting on means for effecting removal of he opposite end of said pivoted with the line of travel of said carriage,

eaaaev frame having means for engaging and actasting the adjusting device, whereby the support for the stack of pa er is lifted, causing the end of the pivoted frame carrying the device for removing the paper to be raised, thereby throwing the opposite end out of engagement with the adjusting device causes the pivoted reciprocating frame to be thrown out of engagement with said lever.

10. A paper-sheet feed mechanism comprising a support for a stack of sheetsof paper, a device for automatically adjusting said support to compensate for removal of paper by the feeding mechanism, a rotatable knife piercing the upper sheets near the rear end of the stack, arms for actuating said knife, a reciprocating frame having a device for engaging the top sheet of paper during forward movementsaid reciprocating frame having means for engaging and actuating the adjusting device, and means for engaging said arms for actuating the knife where- E by a cutting edge is turned toward the rear endof the stack; and means for actuating said reciprocating frame whereby the top sheet is cut loose by forward movement against the knife, while the sheets below are.

held stationary by means of the knife.

11. A. paper-sheet feed mechanism comprising a platform supporting a stack of sheets of paper, a screw supporting the platform, a ratchet Wheel on s'aid screw, a lever carrying a pawl for engaging the ratchet wheel, whereby the screw is rotated, a vertically moving slide adapted to throw said pawl out of engagement, with the ratchet wheeLsaid platform having an arm attached thereto for actuating the slide, a reciprocating frame having a device for removing the sheets in succession, said reciprocating frame having means for engaging and actuating the lever carrying said pawl, thereby causing rotation of said screw, whereby the platform is raised, causing the arm on the platform to actuate the slide which throws the pawl out of engagement with the ratchet wheel.

1:2. A paper-sheet feed mechanism comprising a support for a stack of sheets of paper, a device for automatically adjusting said support to compensate for removal of paper by the feeding mechanism, a vertieally yielding and horizontally rotating rod, said rod carrying a pointed two edge knife which pierces the upper sheets of paper, said rod having arms for causing its rotary movement, a reciproeating carriage supporting a pivoted frame, a pivoted frame having a device at one end resting on the sheets of paper having means for moving a sheet of said paper against the knife, the opposite end of said pivoted frame having means for engaging and actuating the adjusting de vice, whereby the support for the stack is lifted, said reciprocating carriage also hav- 5 ing means for actuating said arms whereby g every back and forth movement of the carriage causes a half revolution of said knife.

1;}. In a paper feeding mechanism a self cleaning knife having a point and two sharp opposite edges in combination with mechanism to rotate said knife a half revolution in order that said edges be alternately presented to the paper, the axis of rotation of said knife being at right angle to the plane of the paper.

Signed at New York city in the county of New York and State of New York this- 27th day of Nov. A. I). 1.908.

F ELIPE GIROUD. 

